<template>
  <section>
    <!--工具条-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true">
        <el-form-item>
          <el-input v-model="keyword" placeholder="参数键"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="warning" v-on:click="keywordQuery">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表v-loading="listLoading"
    :data="tableDatas" -表格数据
    v-loading="listLoading" -> 加载圈
    @selection-change="handleSelectionChange" -> 批量删除
    highlight-current-row  -> 选择一行数据，变亮
    -->

    <el-table :data="tableDatas" v-loading="listLoading"
              @selection-change="handleSelectionChange" highlight-current-row
              style="width: 100%;" :row-key="SpreadPages">
      <!--多选框-->
      <el-table-column type="selection" width="55" :reserve-selection="true">
      </el-table-column>
      <el-table-column type="index" width="70" label="序号">
      </el-table-column>

      <el-table-column label="参数关键字" prop="paramKey" width="150"/>

      <el-table-column label="参数值" prop="paramValue" width="200">
        <template slot-scope="scope">
          <span v-if="scope.row.paramValue.startsWith('http')">
            <img :src="scope.row.paramValue" alt="" width="100px" height="100px"/>
          </span>

          <span v-else>{{scope.row.paramValue }}</span>
        </template>

      </el-table-column>

      <el-table-column label="参数类型" width="120">
        <template slot-scope="scope">
          <span v-if="scope.row.type == 0" style="color: green">普通表表单项</span>
          <span v-else style="color: red">文件上传表单项</span>
        </template>
      </el-table-column>

      <el-table-column prop="createTime" label="添加时间" width="230"/>

      <el-table-column prop="updateTime" label="修改时间" width="230"/>

      <el-table-column prop="operatorName" label="操作人" width="100"/>

      <el-table-column prop="paramDesc" label="参数描述" width="200"/>



      <el-table-column label="操作">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>


    <!--工具条-->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" :disabled="this.sels.length === 0" @click="handlePatchDel">批量删除</el-button>
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange" :current-page="currentPage"
                     :page-sizes="[5, 10, 15]" :page-size="pageSize" layout="total, sizes, prev, pager, next, jumper"
                     background
                     :total="totals" style="float:right;">
      </el-pagination>
    </el-col>



    <!--添加或修改界面-->
    <el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
      <el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">

        <el-form-item label="参数键" prop="paramKey">
          <el-input v-model="saveForm.paramKey" auto-complete="off"></el-input>
        </el-form-item>


        <el-form-item label="类型" prop="type">
          <template>
            <el-radio :label="0" v-model="saveForm.type" @input="handleSelectCommon">普通</el-radio>
            <el-radio :label="1" v-model="saveForm.type" @input="handleSelectFile">文件</el-radio>
            <span v-if="saveForm.type===1">
                         <el-upload class="upload-demo"
                                    action="http://localhost:8080/minio"
                                    name="file"
                                    :on-remove="handleRemove"
                                    :on-success="handleSuccess"
                                    :on-exceed="exceed"
                                    :file-list="fileList"
                                    :limit=1
                                    accept=".jpg,.jpeg,.png,.gif"
                                    list-type="picture">
            <el-button size="small" type="primary">点击上传</el-button>
            <div slot="tip" class="el-upload__tip">只能上传指定类型的图片</div>
          </el-upload>
            </span>
            <span v-else>
              <el-row>
                参数值<el-input v-model="saveForm.paramValue" auto-complete="off"></el-input>
              </el-row>
            </span>
          </template>
        </el-form-item>



        <el-form-item label="参数类型">
          <template>
            <el-radio v-model="saveForm.type" :label="0">普通表表单项</el-radio>
            <el-radio v-model="saveForm.type" :label="1">文件上传表单项</el-radio>
          </template>

        </el-form-item>

        <el-form-item label="参数描述" prop="paramDesc">
          <el-input v-model="saveForm.paramDesc" auto-complete="off"></el-input>
        </el-form-item>

      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit">提交</el-button>
      </div>
    </el-dialog>
  </section>
</template>

<script>

import th from "element-ui/src/locale/lang/th";
import {LinearGradient} from "echarts/lib/util/graphic";

export default {
  data() {
    return {

      reverse: true,
      //1.分页查询相关数据
      totals: 0,//总记录条数
      currentPage: 1,//当前页,要传递到后台的
      pageSize: 5, //每页显示多少条
      tableDatas: [], //当前页数据

      listLoading: false, //加载圈

      title: '',

      //2.高级查询相关数据
      keyword: '',
      //4.批量删除相关数据
      sels: [], //存储多选记录

      //5.添加和修改相关数据
      saveFormVisible: false,
      saveForm: {
        id: null,
        paramKey: '',
        paramValue: '',
        type: 0,
        paramDesc: '',
      },

      //6.添加和修改校验规则-表单项校验
      saveFormRules: {
        paramKey: [
          {required: true, message: '请输入参数键', trigger: 'blur'}
        ],
        paramDesc: [
          {required: true, message: '请输入参数描述', trigger: 'blur'}
        ],
      },
      //上传文件列表
      fileList: [],
    }
  },
  methods: {

    //跨页操作
    SpreadPages(row){
      return row.id
    },
    //1.分页查询相关方法
    //1.1.获取列表数据
    getTableData() {
      this.listLoading = true //开启加载圈
      var params = {
        "currentPage": this.currentPage, //点击的当前第几页
        "pageSize": this.pageSize,   //当前页需要显示多少条数据
        "keyword": this.keyword    //模糊查询 ->关键字
      }
      this.$http.post("/param", params).then(request => {

        //接收参数添加到表格中(tableDatas),request.data ->固定写法
        this.tableDatas = request.data.list
        this.totals = request.data.total
        this.listLoading = false //关闭加载圈
      })
    },

    //1.2.选择第几页时触发
    handleCurrentChange(currentPage) {
      this.currentPage = currentPage //1 -> 2
      this.getTableData()
    },
    //1.3.选择每页显示记录条数时触发
    handleSizeChange(pageSize) {
      this.pageSize = pageSize
      this.getTableData()
    },
    //2.高级查询相关方法
    keywordQuery() {
      this.currentPage = 1; //从第一页开始查询
      this.getTableData();
    },



    //3.删除相关方法
    //row -> 当前行对象 获取一行数据
    handleDel(row) {
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.$http.delete("/param/" + row.id,).then(res => {
          if (res.data.success) {
            this.$message.success("操作删除成功")
            this.getTableData()
          } else {
            this.$message.error("服务器异常，删除失败")
          }
        }).catch(res => {
          this.$message.error("网络异常，请查看您的网络")
        })
      }).catch(() => {
        this.$message.error("已取消删除")
      });
    },

    //4.批量删除相关方法
    //4.1.选项改变时触发
    handleSelectionChange(val) {
      this.sels = val
    },

    //4.2.批量删除
    handlePatchDel() {
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        let ids = this.sels.map(obj => obj.id)//获取批量删除对象的id，组成数组。
        this.$http.patch("/param", ids).then(res => {
          if (res.data.success) {
            this.$message.success("操作批量删除成功")
            this.getTableData()
          } else {
            this.$message.error("服务器异常，批量删除失败")
          }
        }).catch(res => {
          this.$message.error("网络异常，请查看您的网络")
        })
      }).catch(() => {
        this.$message.error("已取消批量删除")
      });
    },

    //5.添加和修改相关方法
    //5.1.点击添加弹出对话框
    handleAdd() {
      this.title = "添加数据"
      this.saveFormVisible = true //打开模态框
      this.saveForm = {
        id: null,
        paramKey: '',
        paramValue: '',
        type: 0,
        paramDesc: '',
      }
      this.fileList = [] //清空存储图片文件
    },
    //5.2.点击修改弹出对话框
    handleEdit(row) {
      this.title = "编辑数据"
      this.saveFormVisible = true //打开模态框
      this.saveForm = Object.assign({}, row)
      this.fileList=[]
      if (this.saveForm.paramValue){
        this.fileList.push({'url':this.saveForm.paramValue})
      }
    },
    //5.3.提交表单数据操作数据库
    saveSubmit() {
      this.$refs.saveForm.validate((valid) => {
        if (valid) {
          this.$http.put("/param",this.saveForm).then(res => {
            if (res.data.success) {
              this.$message.success("操作" + this.title + "成功")
              this.getTableData()
              this.saveFormVisible = false
            } else {
              this.$message.error("服务器异常" + this.title + "未成功")
              this.saveFormVisible = false
            }
          }).catch(res => {
            this.$message.error("网络异常，请查看您的网络")
          })
        } else {
          this.$message.error("您有必须填写的数据未填写")
        }
      })
    },


    handleSelectCommon() {
      this.saveForm.type = 0
    },
    handleSelectFile() {
      this.saveForm.type = 1
    },
    //删除之后的钩子
    handleRemove(file) {
      //点击删除的时候要获取文件名称，然后调用后端的删除接口
      var fileName = file.url.substring(file.url.lastIndexOf("/") +1 )
      this.$http.delete("/minio/"+fileName).then(res=>{
        if(res.data.success){
          this.$message.success("删除成功");
          this.fileList = [];
          this.saveForm.paramValue='';
        }else{
          this.$message.error("删除失败");
        }
      })
    },
    //上传成功之后的钩子
    handleSuccess(response) {
      //上传成功之后将文件名获取出来，拼接上minio的地址 给  paramValue复制
      this.saveForm.paramValue = "http://60.204.187.34:9090/java1210/"+response.obj;
      if (this.saveForm.paramValue){
        this.fileList.push({'name':response.obj,'url':"http://60.204.187.34:9090/java1210/"+response.obj})
      }
    },
    //超出个数之后的钩子
    exceed() {
      this.$message.error("最多只能上传一个文件")
    },

  },
  mounted() {
    this.getTableData();
  }
}

</script>

<style scoped></style>
